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			121 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			121 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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| 	This file is part of solidity.
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| 
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| 	solidity is free software: you can redistribute it and/or modify
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| 	it under the terms of the GNU General Public License as published by
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| 	the Free Software Foundation, either version 3 of the License, or
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| 	(at your option) any later version.
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| 
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| 	solidity is distributed in the hope that it will be useful,
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| 	but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| 	GNU General Public License for more details.
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| 
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| 	You should have received a copy of the GNU General Public License
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| 	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
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| */
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| // SPDX-License-Identifier: GPL-3.0
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| 
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| #include <tools/yulPhaser/FitnessMetrics.h>
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| 
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| #include <libsolutil/CommonIO.h>
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| 
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| #include <cmath>
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| 
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| using namespace std;
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| using namespace solidity::util;
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| using namespace solidity::yul;
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| using namespace solidity::phaser;
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| 
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| Program const& ProgramBasedMetric::program() const
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| {
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| 	if (m_programCache == nullptr)
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| 		return m_program.value();
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| 	else
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| 		return m_programCache->program();
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| }
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| 
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| Program ProgramBasedMetric::optimisedProgram(Chromosome const& _chromosome)
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| {
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| 	if (m_programCache == nullptr)
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| 		return optimisedProgramNoCache(_chromosome);
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| 
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| 	return m_programCache->optimiseProgram(
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| 		toString(_chromosome),
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| 		m_repetitionCount
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| 	);
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| }
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| 
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| Program ProgramBasedMetric::optimisedProgramNoCache(Chromosome const& _chromosome) const
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| {
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| 	Program programCopy = program();
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| 	for (size_t i = 0; i < m_repetitionCount; ++i)
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| 		programCopy.optimise(_chromosome.optimisationSteps());
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| 
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| 	return programCopy;
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| }
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| 
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| size_t ProgramSize::evaluate(Chromosome const& _chromosome)
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| {
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| 	return optimisedProgram(_chromosome).codeSize(codeWeights());
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| }
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| 
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| size_t RelativeProgramSize::evaluate(Chromosome const& _chromosome)
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| {
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| 	double const scalingFactor = pow(10, m_fixedPointPrecision);
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| 
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| 	size_t unoptimisedSize = optimisedProgram(Chromosome("")).codeSize(codeWeights());
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| 	if (unoptimisedSize == 0)
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| 		return static_cast<size_t>(scalingFactor);
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| 
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| 	size_t optimisedSize = optimisedProgram(_chromosome).codeSize(codeWeights());
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| 
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| 	return static_cast<size_t>(round(
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| 		double(optimisedSize) / double(unoptimisedSize) * scalingFactor
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| 	));
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| }
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| 
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| size_t FitnessMetricAverage::evaluate(Chromosome const& _chromosome)
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| {
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| 	assert(m_metrics.size() > 0);
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| 
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| 	size_t total = m_metrics[0]->evaluate(_chromosome);
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| 	for (size_t i = 1; i < m_metrics.size(); ++i)
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| 		total += m_metrics[i]->evaluate(_chromosome);
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| 
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| 	return total / m_metrics.size();
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| }
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| 
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| size_t FitnessMetricSum::evaluate(Chromosome const& _chromosome)
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| {
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| 	assert(m_metrics.size() > 0);
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| 
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| 	size_t total = m_metrics[0]->evaluate(_chromosome);
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| 	for (size_t i = 1; i < m_metrics.size(); ++i)
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| 		total += m_metrics[i]->evaluate(_chromosome);
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| 
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| 	return total;
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| }
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| 
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| size_t FitnessMetricMaximum::evaluate(Chromosome const& _chromosome)
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| {
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| 	assert(m_metrics.size() > 0);
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| 
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| 	size_t maximum = m_metrics[0]->evaluate(_chromosome);
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| 	for (size_t i = 1; i < m_metrics.size(); ++i)
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| 		maximum = max(maximum, m_metrics[i]->evaluate(_chromosome));
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| 
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| 	return maximum;
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| }
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| 
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| size_t FitnessMetricMinimum::evaluate(Chromosome const& _chromosome)
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| {
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| 	assert(m_metrics.size() > 0);
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| 
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| 	size_t minimum = m_metrics[0]->evaluate(_chromosome);
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| 	for (size_t i = 1; i < m_metrics.size(); ++i)
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| 		minimum = min(minimum, m_metrics[i]->evaluate(_chromosome));
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| 
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| 	return minimum;
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| }
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